Microsoft experienced a significant global outage on November 12, 2026, affecting services such as Outlook, Teams, Copilot, and other Microsoft 365 applications. The company has not yet confirmed the exact cause of the outage. However, Microsoft has stated that there is no indication of a cyberattack being responsible. (aljazeera.com)
Early reports suggested that the outage might have been due to elevated server load or issues with automated health checks. Later, Microsoft indicated that a process responsible for establishing secure connections on the affected servers became overwhelmed, leading to server failures. The company began rolling back recent network configuration changes that correlated with the start of the impact. (ibistra.tech)
As of now, Microsoft has not provided a definitive root cause for the outage. The company is continuing its investigation and has not linked the incident to recent workforce reductions. (nacionale.com)
Highlights:
- The Latest: Microsoft says recovery efforts are making progress on worldwide outage, Published on Friday, November 13
- Microsoft reports progress in reviving email and other services during a global outage, Published on Thursday, November 12
- Microsoft confirms an Outlook bug caused emails to bounce instead of reaching inboxes, Published on Thursday, November 12
Sources:
[1] Microsoft hit by global outages: What happened and why? — https://www.aljazeera.com/news/2026/11/13/microsoft-hit-by-global-outages-what-happened-and-why?utm_source=openai
[2] Microsoft 365 Outage (Nov 2026): What We Know About the Cause | Ibistra Tech — https://www.ibistra.tech/blog/microsoft-365-outage-november-2026/?utm_source=openai
[3] Microsoft outage: no link to layoffs in its updates — https://www.nacionale.com/en/articles/did-microsoft-layoffs-cause-outlook-outage-job-cuts-2026-buyout?utm_source=openai
[4] The Latest: Microsoft says recovery efforts are making progress on worldwide outage — https://apnews.com/article/e2330e733db280805dbf7e3eb29ee0e1?utm_source=openai
[5] Microsoft reports progress in reviving email and other services during a global outage — https://apnews.com/article/d92547a821930290db2964388016979a?utm_source=openai
[6] Microsoft confirms an Outlook bug caused emails to bounce instead of reaching inboxes — https://www.windowscentral.com/microsoft/microsoft-office/microsoft-confirms-why-your-outlook-inbox-was-light-on-emails-this-week?utm_source=openai
[7] www.euronews.com — https://www.euronews.com/2026/11/13/microsoft-outage-explained-what-went-wrong-and-is-your-data-at-risk?utm_source=openai
[8] www.digitaltrainingjet.com — https://www.digitaltrainingjet.com/post/why-microsoft-365-outages-happen-reasons-checklist-2026?utm_source=openai
[9] www.nacionale.com — https://www.nacionale.com/en/articles/has-microsoft-had-outage-like-this-before-past-outlook-microsoft-365-outages?utm_source=openai
[10] www.nacionale.com — https://www.nacionale.com/en/articles/what-is-configuration-change-microsoft-outlook-outage-network-change-reverted?utm_source=openai
[11] capitalandcompute.net — https://capitalandcompute.net/blog/did-ai-generated-code-cause-the-microsoft-365-outage/?utm_source=openai
[12] www.moneycontrol.com — https://www.moneycontrol.com/technology/microsoft-outage-company-says-no-indication-of-cyberattack-points-to-server-failures-article-14079169.html/amp?utm_source=openai
[13] economictimes.indiatimes.com — https://economictimes.indiatimes.com/tech/technology/microsoft-outage-company-cant-pinpoint-cause-disruptions-to-outlook-teams-continue/articleshow/135797097.cms?utm_source=openai
[14] www.cloudspress.com — https://www.cloudspress.com/microsoft-was-down-live-updates-on-outage-that-took-down-azure-xbox-365-and-more/?utm_source=openai
[15] www.independent.co.uk — https://www.independent.co.uk/tech/microsoft-outage-cause-outlook-down-b3084285.html?utm_source=openai